Sled-brake



SLED BRAKE.

No. 319,950. Patented June 16, 1885.

I! I o i l N, PETERS, PhoioLNwInpMr, Wahinllum D- C UNTTEE STATES PATENT QEEIQE.

LUTHER M. BRADBURY, JR, OF QUINCY, MASSACHUSETTS.

SLED-OBRAKE.

EPECIFICATION forming part of Letters Patent No. 319,950, dated June 16, 1885.

Application filed February 24, 1885. (No model.)

in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming a part of this specification, in which Figure l is aside elevation of a sled embodying my improvement, the brake being represented as elevated or out of use; and Fig. 2, a corresponding view showing the brake depressed or in use.

Like letters of reference indicate corresponding parts in the different figures of the drawings.

My invention relates to that class of sleds which are provided with brakes; and it consistsin a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a more effective and otherwise desirable device of this character is produced than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation, its extreme simplicity rendering an elaborate description unnecessary.

In the drawings, A represents the body or platform of the sled; B, the forward runners; U, the hind runners, and E the tongue or shafts, these parts being of the ordinary form and construction, except as hereinafter specified.

Arranged to work vertically in one of the runners 0 there is a serrated bar, E, said bar being inclined or beveled at its lower end, .00, and adapted to engage the snow or ice when depressed. Pivoted loosely by the staple m to the bar H there is a toothed segment, J, adapted to engage the serrated bar E, said segment and bar being also connected and kept in engagement by a link, K, which passes loosely through holes in said parts. A vertically-arranged lever, L, is pivoted at f to the forward end of the platform A, and jointed to the lower end of said lever there is a horizontally-arranged connectingrod, N, the rear end of which is jointed to the segment J. A spring, z, is attached to the upper side of the runner O, the free end of said spring pressing on the top of the bar E to preventit from rattling, and also assisting to force the same downwardly through said runner when the lever L is pushed forward, as hereinafter described.

In the use of my improvement, the lever L being arranged vertically, or nearly so, and secured by the pivoted catch Q, and the bar E elevated, as shown in Fig. 1, if, now, it is desired to apply the brake to stop or retard the forward movements of the sled, the catch Q is detached from the lever and thelever forced forward, as shown in Fig. 2, causing the segment J to partially rotate on its pivotal support m,and force the bar E downward through the runner 0 into engagement with the snow or ice in a manner which will be readily obvious without a more explicit description. I do not confine myself to pivoting the segments J to the bar H, as it may be pivoted directly to one of the runners G, if desired; neither do I confine myself to the use of two pairs of runners, as one pair may be employed, if preferred.

Having thus explained my invention, what I claim is In a sled, the combination of theverticallyv sliding serrated brake-bar E, a spring, 2, pressing on said bar, the segment J, intermeshing therewith, the staple m, passing through said 8 5- segment and into the frame of the sled., ne link K, connecting said segment and bfakebar, rod N, connected tosaid fi gyfcnt, and the pivoted lever L, connected to said rod, substantially as described.

LUTHER M. BRADBURYI, J R.

Witnesses: 7 Y

O. A. SHAW,- L. J. -W,111TE. 

